fix: 修复无法查看指针变量的的问题

修复无法查看/设置寄存器的问题;
修复无法设置变量值的问题.

Signed-off-by: Haoyang Chen <chenhaoyang@kylinos.cn>

.gitignore

@@ -2,3 +2,4 @@ out
 node_modules
 *.vsix
 .vscode-test
+package-lock.json

package-lock.json

@@ -1,15 +1,18 @@
 {
 	"name": "debug",
-	"version": "0.26.0",
+	"version": "0.26.1",
 	"lockfileVersion": 2,
 	"requires": true,
 	"packages": {
 		"": {
 			"name": "debug",
-			"version": "0.26.0",
+			"version": "0.26.1",
 			"license": "public domain",
 			"dependencies": {
+				"json-stream-stringify": "^2.0.4",
+				"node-interval-tree": "^1.3.3",
 				"ssh2": "^1.6.0",
+				"stream-json": "^1.7.3",
 				"vscode-debugadapter": "^1.45.0",
 				"vscode-debugprotocol": "^1.45.0"
 			},
@@ -719,6 +722,11 @@
 				"js-yaml": "bin/js-yaml.js"
 			}
 		},
+		"node_modules/json-stream-stringify": {
+			"version": "2.0.4",
+			"resolved": "https://registry.npmmirror.com/json-stream-stringify/-/json-stream-stringify-2.0.4.tgz",
+			"integrity": "sha512-gIPoa6K5w6j/RnQ3fOtmvICKNJGViI83A7dnTIL+0QJ/1GKuNvCPFvbFWxt0agruF4iGgDFJvge4Gua4ZoiggQ=="
+		},
 		"node_modules/locate-path": {
 			"version": "6.0.0",
 			"resolved": "https://registry.npmjs.org/locate-path/-/locate-path-6.0.0.tgz",
@@ -977,6 +985,17 @@
 				"node": "^10 || ^12 || ^13.7 || ^14 || >=15.0.1"
 			}
 		},
+		"node_modules/node-interval-tree": {
+			"version": "1.3.3",
+			"resolved": "https://registry.npmmirror.com/node-interval-tree/-/node-interval-tree-1.3.3.tgz",
+			"integrity": "sha512-K9vk96HdTK5fEipJwxSvIIqwTqr4e3HRJeJrNxBSeVMNSC/JWARRaX7etOLOuTmrRMeOI/K5TCJu3aWIwZiNTw==",
+			"dependencies": {
+				"shallowequal": "^1.0.2"
+			},
+			"engines": {
+				"node": ">= 7.6.0"
+			}
+		},
 		"node_modules/normalize-path": {
 			"version": "3.0.0",
 			"resolved": "https://registry.npmjs.org/normalize-path/-/normalize-path-3.0.0.tgz",
@@ -1159,6 +1178,11 @@
 				"randombytes": "^2.1.0"
 			}
 		},
+		"node_modules/shallowequal": {
+			"version": "1.1.0",
+			"resolved": "https://registry.npmmirror.com/shallowequal/-/shallowequal-1.1.0.tgz",
+			"integrity": "sha512-y0m1JoUZSlPAjXVtPPW70aZWfIL/dSP7AFkRnniLCrK/8MDKog3TySTBmckD+RObVxH0v4Tox67+F14PdED2oQ=="
+		},
 		"node_modules/sprintf-js": {
 			"version": "1.0.3",
 			"resolved": "https://registry.npmjs.org/sprintf-js/-/sprintf-js-1.0.3.tgz",
@@ -1182,6 +1206,19 @@
 				"nan": "^2.15.0"
 			}
 		},
+		"node_modules/stream-chain": {
+			"version": "2.2.5",
+			"resolved": "https://registry.npmmirror.com/stream-chain/-/stream-chain-2.2.5.tgz",
+			"integrity": "sha512-1TJmBx6aSWqZ4tx7aTpBDXK0/e2hhcNSTV8+CbFJtDjbb+I1mZ8lHit0Grw9GRT+6JbIrrDd8esncgBi8aBXGA=="
+		},
+		"node_modules/stream-json": {
+			"version": "1.7.4",
+			"resolved": "https://registry.npmmirror.com/stream-json/-/stream-json-1.7.4.tgz",
+			"integrity": "sha512-ja2dde1v7dOlx5/vmavn8kLrxvNfs7r2oNc5DYmNJzayDDdudyCSuTB1gFjH4XBVTIwxiMxL4i059HX+ZiouXg==",
+			"dependencies": {
+				"stream-chain": "^2.2.5"
+			}
+		},
 		"node_modules/string-width": {
 			"version": "4.2.3",
 			"resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.3.tgz",
@@ -2053,6 +2090,11 @@
 				"esprima": "^4.0.0"
 			}
 		},
+		"json-stream-stringify": {
+			"version": "2.0.4",
+			"resolved": "https://registry.npmmirror.com/json-stream-stringify/-/json-stream-stringify-2.0.4.tgz",
+			"integrity": "sha512-gIPoa6K5w6j/RnQ3fOtmvICKNJGViI83A7dnTIL+0QJ/1GKuNvCPFvbFWxt0agruF4iGgDFJvge4Gua4ZoiggQ=="
+		},
 		"locate-path": {
 			"version": "6.0.0",
 			"resolved": "https://registry.npmjs.org/locate-path/-/locate-path-6.0.0.tgz",
@@ -2243,6 +2285,14 @@
 			"integrity": "sha512-rdwtIXaXCLFAQbnfqDRnI6jaRHp9fTcYBjtFKE8eezcZ7LuLjhUaQGNeMXf1HmRoCH32CLz6XwX0TtxEOS/A3Q==",
 			"dev": true
 		},
+		"node-interval-tree": {
+			"version": "1.3.3",
+			"resolved": "https://registry.npmmirror.com/node-interval-tree/-/node-interval-tree-1.3.3.tgz",
+			"integrity": "sha512-K9vk96HdTK5fEipJwxSvIIqwTqr4e3HRJeJrNxBSeVMNSC/JWARRaX7etOLOuTmrRMeOI/K5TCJu3aWIwZiNTw==",
+			"requires": {
+				"shallowequal": "^1.0.2"
+			}
+		},
 		"normalize-path": {
 			"version": "3.0.0",
 			"resolved": "https://registry.npmjs.org/normalize-path/-/normalize-path-3.0.0.tgz",
@@ -2369,6 +2419,11 @@
 				"randombytes": "^2.1.0"
 			}
 		},
+		"shallowequal": {
+			"version": "1.1.0",
+			"resolved": "https://registry.npmmirror.com/shallowequal/-/shallowequal-1.1.0.tgz",
+			"integrity": "sha512-y0m1JoUZSlPAjXVtPPW70aZWfIL/dSP7AFkRnniLCrK/8MDKog3TySTBmckD+RObVxH0v4Tox67+F14PdED2oQ=="
+		},
 		"sprintf-js": {
 			"version": "1.0.3",
 			"resolved": "https://registry.npmjs.org/sprintf-js/-/sprintf-js-1.0.3.tgz",
@@ -2386,6 +2441,19 @@
 				"nan": "^2.15.0"
 			}
 		},
+		"stream-chain": {
+			"version": "2.2.5",
+			"resolved": "https://registry.npmmirror.com/stream-chain/-/stream-chain-2.2.5.tgz",
+			"integrity": "sha512-1TJmBx6aSWqZ4tx7aTpBDXK0/e2hhcNSTV8+CbFJtDjbb+I1mZ8lHit0Grw9GRT+6JbIrrDd8esncgBi8aBXGA=="
+		},
+		"stream-json": {
+			"version": "1.7.4",
+			"resolved": "https://registry.npmmirror.com/stream-json/-/stream-json-1.7.4.tgz",
+			"integrity": "sha512-ja2dde1v7dOlx5/vmavn8kLrxvNfs7r2oNc5DYmNJzayDDdudyCSuTB1gFjH4XBVTIwxiMxL4i059HX+ZiouXg==",
+			"requires": {
+				"stream-chain": "^2.2.5"
+			}
+		},
 		"string-width": {
 			"version": "4.2.3",
 			"resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.3.tgz",

src/backend/backend.ts

@@ -76,7 +76,7 @@ export interface IBackend {
 	getStack(startFrame: number, maxLevels: number, thread: number): Thenable<Stack[]>;
 	getRegisters(): Promise<any[]>;
 	getStackVariables(thread: number, frame: number): Thenable<Variable[]>;
-	evalExpression(name: string, thread: number, frame: number): Thenable<any>;
+	evalExpression(name: string, thread: number, frame: number, suppressFailure:boolean): Thenable<any>;
 	isReady(): boolean;
 	changeVariable(name: string, rawValue: string): Thenable<any>;
 	examineMemory(from: number, to: number): Thenable<any>;
@@ -85,6 +85,7 @@ export interface IBackend {
 
 export class VariableObject {
 	name: string;
+	evaluateName:string;
 	exp: string;
 	numchild: number;
 	type: string;
@@ -97,6 +98,7 @@ export class VariableObject {
 	id: number;
 	constructor(node: any) {
 		this.name = MINode.valueOf(node, "name");
+		this.evaluateName = this.name;
 		this.exp = MINode.valueOf(node, "exp");
 		this.numchild = parseInt(MINode.valueOf(node, "numchild"));
 		this.type = MINode.valueOf(node, "type");

src/backend/gdb_expansion.ts

@@ -76,9 +76,13 @@ export function expandValue(variableCreate: Function, value: string, root: strin
 						}
 						namespace = namespace + pointerCombineChar + name;
 					} else
+						if (root && root.startsWith("*"))
+							namespace = name.substr(1);
+						else {
 							namespace = name;
 						}
 				}
+			}
 		});
 		stack.pop();
 		return prefix + namespace;
@@ -211,27 +215,36 @@ export function expandValue(variableCreate: Function, value: string, root: strin
 
 	createValue = (name, val) => {
 		let ref = 0;
+		let evaluateName;
 		if (typeof val == "object") {
 			ref = variableCreate(val);
 			val = "Object";
 		} else if (typeof val == "string" && val.startsWith("*0x")) {
 			if (extra && MINode.valueOf(extra, "arg") == "1") {
-				ref = variableCreate(getNamespace("*(" + name), { arg: true });
+				const  isVoid = MINode.valueOf(extra, "type") === "void *";
+				evaluateName = getNamespace( ( isVoid ? "":"*") + name);
+				ref = variableCreate(getNamespace( ( isVoid ? "":"*") + "(" + name), { arg: true, isVoid });
 				val = "<args>";
 			} else {
-				ref = variableCreate(getNamespace("*" + name));
+				evaluateName = getNamespace("*" + name);
+				ref = variableCreate(evaluateName);
 				val = "Object@" + val;
 			}
 		} else if (typeof val == "string" && val.startsWith("@0x")) {
-			ref = variableCreate(getNamespace("*&" + name.substr));
+			evaluateName = getNamespace("*&" + name);
+			ref = variableCreate(evaluateName);
 			val = "Ref" + val;
 		} else if (typeof val == "string" && val.startsWith("<...>")) {
-			ref = variableCreate(getNamespace(name));
+			evaluateName =getNamespace(name);
+			ref = variableCreate(evaluateName);
 			val = "...";
+		} else {
+			evaluateName = getNamespace(name);
 		}
 		return {
 			name: name,
 			value: val,
+			evaluateName,
 			variablesReference: ref
 		};
 	};

src/backend/mi2/mi2.ts

@@ -824,7 +824,7 @@ export class MI2 extends EventEmitter implements IBackend {
 			const type = MINode.valueOf(reg, "type");
 			ret.push({
 				name: name,
-				evaluateName: name,
+				evaluateName: '$'+name, //修复寄存器无法watch
 				value: value,
 				type: type,
 				variablesReference: 0
@@ -895,7 +895,7 @@ export class MI2 extends EventEmitter implements IBackend {
 			}, reject);
 		});
 	}
-	async evalExpression(name: string, thread: number, frame: number): Promise<MINode> {
+	async evalExpression(name: string, thread: number, frame: number, suppressFailure: boolean = false): Promise<MINode> {
 		if (trace)
 			this.log("stderr", "evalExpression");
 
@@ -908,7 +908,7 @@ export class MI2 extends EventEmitter implements IBackend {
 		}
 		command += name;
 
-		return await this.sendCommand(command);
+		return await this.sendCommand(command, suppressFailure);
 	}
 
 	async varCreate(expression: string, name: string = "-", frame: string = "@"): Promise<VariableObject> {

src/mibase.ts

@@ -10,6 +10,7 @@ import * as systemPath from "path";
 import * as net from "net";
 import * as os from "os";
 import * as fs from "fs";
+import { hexFormat } from './backend/common';
 
 class ExtendedVariable {
 	constructor(public name, public options) {
@@ -193,7 +194,25 @@ export class MI2DebugSession extends DebugSession {
 					value: res.result("value")
 				};
 			} else {
-				let name = args.variablesReference == VARIABLES_TAG_REGISTER ? `$${args.name}` : args.name;
+				/* 字符串不修改 */
+				if (args.value[0] == "\"") {
+					this.sendErrorResponse(response, 20, "Could not modify string variable");
+					return;
+				}
+				let name;
+				let id;
+				if (args.variablesReference >= VAR_HANDLES_START) {
+					const pointerCombineChar = ".";
+					id = this.variableHandles.get(args.variablesReference);
+					if (typeof id == "string") {
+						name = id[0] == '*' ? id.substr(1):id + pointerCombineChar + args.name;
+					}
+				}
+				/* 修复寄存器无法修改 */
+				else if (args.variablesReference == VARIABLES_TAG_REGISTER) {
+					name = `$${args.name}`;
+				}
+
 				await this.miDebugger.changeVariable(name, args.value);
 				response.body = {
 					value: args.value
@@ -459,6 +478,7 @@ export class MI2DebugSession extends DebugSession {
 			this.sendResponse(response);
 			return;
 		}
+
 		if (args.variablesReference < VAR_HANDLES_START) {
 			id = args.variablesReference - STACK_HANDLES_START;
 		} else {
@@ -539,8 +559,9 @@ export class MI2DebugSession extends DebugSession {
 						} else
 							variables.push({
 								name: variable.name,
+								evaluateName: variable.name,
 								type: variable.type,
-								value: "<unknown>",
+								value: variable.type,
 								variablesReference: createVariable(variable.name)
 							});
 					}
@@ -617,7 +638,13 @@ export class MI2DebugSession extends DebugSession {
 						// TODO: this evals on an (effectively) unknown thread for multithreaded programs.
 						const variable = await this.miDebugger.evalExpression(JSON.stringify(`${varReq.name}+${arrIndex})`), 0, 0);
 						try {
-							const expanded = expandValue(createVariable, variable.result("value"), varReq.name, variable);
+							let root = varReq.name;
+							const t = varReq.name.indexOf('(');//如果变量名称带 ( 说明它是一个参数
+							let name:string = varReq.name;
+							if (t) {
+								root = name.substring(0,t) + name.substring(t+1);
+							}
+							const expanded = expandValue(createVariable, variable.result("value"), root, variable);
 							if (!expanded) {
 								this.sendErrorResponse(response, 15, `Could not expand variable`);
 							} else {
@@ -629,7 +656,7 @@ export class MI2DebugSession extends DebugSession {
 											return submit();
 									} else if (expanded[0] != '"') {
 										strArr.push({
-											name: "[err]",
+											name: "value",
 											value: expanded,
 											variablesReference: 0
 										});
@@ -642,10 +669,17 @@ export class MI2DebugSession extends DebugSession {
 									});
 									addOne();
 								} else {
+									expanded.forEach(element => {
+										let evaluateName;
+										if (this.variableHandlesReverse.hasOwnProperty(element.name)) {
+											evaluateName = this.variableHandlesReverse[element.name];
+										}
 										strArr.push({
-										name: "[err]",
+											name: element.name,
-										value: expanded,
+											evaluateName: element.evaluateName,
-										variablesReference: 0
+											value: element.value,
+											variablesReference: element.variablesReference
+										});
 									});
 									submit();
 								}
@@ -730,10 +764,11 @@ export class MI2DebugSession extends DebugSession {
 	protected evaluateRequest(response: DebugProtocol.EvaluateResponse, args: DebugProtocol.EvaluateArguments): void {
 		const [threadId, level] = this.frameIdToThreadAndLevel(args.frameId);
 		if (args.context == "watch" || args.context == "hover") {
-			this.miDebugger.evalExpression(args.expression, threadId, level).then((res) => {
+			/* 悬停查看变量时不报错 */
+			this.miDebugger.evalExpression(args.expression, threadId, level, args.context == "hover").then((res) => {
 				response.body = {
 					variablesReference: 0,
-					result: res.result("value")
+					result: args.expression[0] == '$' ? hexFormat(parseInt(res.result("value"))) : res.result("value")
 				};
 				this.sendResponse(response);
 			}, msg => {